Multiple Choice:

1. Bird that eat insects is an example of:
A. Abiotic Factors B. Guilds
C. Carrying Capacity D. Limiting Factors

2. Non-living parts of the eco-system that can influence the species that live there is:
A. Keystone Species B. Stratification
C. Abiotic Factors D. Limiting Factors

3. What is typically determined by plants:
A. Vertical Stratification B. Horizontal Stratification
C. Understory Layer D. Canopy Layer

4. A Keystone Species precense in a community:
A. Has no effect B. Is Critical
C. Undetermined D. None of the Above

5. What happens if an organism cannot compete?
A.Better Survival B. Has no effect
C. Relocation D. Become scarce and extinct

6. Invasive species are brought to different countries by:
A.Ships B. Accidentally
C.People D. All of the above

7. The stratification, the biodiversity:
A. More, More B. Less, More
C. More, Less D. cannot be determined

8. Does competition always occur?
A. Yes B. No
C. Sometimes D. Rarely

9. Competition is more pronounced with members of the same
A. Country B. Guild
C. World D. State

10. How can birds decrease competition for food?
A. By killing eachother B. By flying to another community
C. By eating something else D. By narrowing foraging zone

11. Invasive species are ___ for the envoirment:
A. Bad B. Good
C. usually bad D. always good

12. An example of Symbiosis is:
A. Portuguese Man of War B. Green Crabs
C. Clown fish and sea anemomi D. none of the above


Short Answer:

1. What are Limiting Factors and list 4 examples.

2. Draw a carrying capacity graph (with key) and explain how it works.

3. Name the layers of the forest and breifly explain each layer.